Settling-tank.



` TED STATES Parana ormoni JOHN MICHAEL .CALLOl/V, OF SALT LAKE CITY, UTAH.

sETTLlNe-TANK. l

l No. 824,279.

Specification of. Letters Patent.

rat'entd June 2e, ieee.

Y Application led July 14:, 1904. Serial No. 216,610.

' residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented new and useful 'Improvements in Settling- Tanks, of which tion.

This is a device for settling'iinely-divided material held in suspension in water, and findsits chief use in ore concentration. The

the following is a specificafunnel form of tank is the best shape to withstand the weight of its contents and the strains being all tensile ones very thin metal can be used in its construction and yet give great rigidity and strength.v y A This device offers the advantage of a centrally-situated feed-tube which delivers the material below the surface of the water in the tank, so as to avoid agitation of the surface and also to submerge and entrap all particles liable to float off in the overflow.- Another advantage is the V-shaped chan'- nel between the sides ofthe tank and the overfiow1ing,which is made sloping vto the overflow-gutters by the same material-whichmakes a water-tight joint between the parts mentioned.

Additionally the means employed for ad`- justing the overow-band `to a perfect level,-

the means for flushing the dischar e-ducts,

y Fig. 4 is an enlarged side elevation of part of and of regulating the consistency an volume of pulp-discharge constitute novelt f in the art of concentration.

The accompanying drawings illustrate the l device, its various features being'referred to 'by letters,l similar letters denoting corresponding parts in the several views.

vice. Fig. 2 isan enlarged plan of the lower end of the upper section of the feed-tube.A

Fig. Bis a plan view of .one half-of .the.tank.

the overflowfband'and' showing the means employed for tightening vthe band on the ring, and Fig. '5 isa vertical section of thev upper part ofthe tank, on line a: of Fig. 3.

The Vletter A designates the funnel-forrn I settling -tank, which is preferably made of metal.v This tank is set in a frame K, so that its top will beapproximately level.

B is a thin ring set horizontally in the tank, with its lower edge resting against the side of the tank' and its upper edge somewhat below the upper edge of the tank.l Thisring is held in place by lugs tb, and its -connection with the tank is made water-tight by a layer of 'ocement b.. This cement is applied soas to make the bottom of the V-shaped channel b3 inclined from a median line across the tank down to' the gutters or vent-pipes C C at opposite `sides of the upper part of the tank.

y D is a band on 'the ring B andvertically adjustable upon it, being @held thereon by a tightener formed of short cylinders d, held in. loops formed by the ends of the band. These' cylinders are drawn toward each other-by a right-andleft screw-bolt d', provided with a wrench-seat d2. The space between the loops of the band is covered by a short piece b2 of the band material..

Lis the main launder, containing the slimes, which are drawn off by a lateral Z and directed into the feeder. nThe upper memberE of this feeder is fixed to the chute l and its lower member' telescopes into the upper member. The upper member hasl a vertical slit e3 in its bottom and is provided on each side of said slit with jaws e e', which are adapted to be drawn toward each other by a set-screw e2. By these means the two members are held together.A j

Fis a disk-shaped. float of less diameter than the feeder'and located therein, and f is the funnel-shaped entrance at the upper end of the feeder. Y

exit, being fitted upon the bottom of said tank. Thiscasting `has a bottom opening g, stop ed by a plug g', and a lateral duct g2, whic curvesupwardly and connects with a pipe H, having'the same inclination as g2. vThe pipe H has a valve h, and beyond 'this valve h itconnects with a pressure water-pipe l, rovided with avalve t. Beyond the pipe` Vvl t e pipe H connects with `with a terminal nozzle Iii-using thisv device the slimes are admitted into. the 'receiver E and pass down through thefunnel f, by Vwhich they are 'directed to fall upon' the iloatv F; The slimes afeXible hose J,

pass smoothly over theedges of this iioat down through the'lower art of the feeder and into'the tank A; hen the tank has been filled, the slimes are thus delivered into the tank below the surface of its contents' 4without materially agitating its contents and gradually extend out toward the sides of the tank. The slimes are fed in a continuous small stream' or intermittently, time being G is a hollow casting serving as the tank- IOO IIO

. and passes out through the hose J for further treatment. The ipe H should stand approximately para lel to the adjacent side of the tank, and the pliant hose J is adjusted by raising or lowering vthe nozzle to secure the proper degree of tank-pressure in drawing out the settlings, which vary in consistency, according to the material fed into the tank. If the pipe H and the hose become clogged, they are easily cleared by closing valve h and opening valve i in the water-pressure pipe I, and when the tank is not in use its lower end and the casting G are 'flushed out by removing the plug g, opening valves h and i, and pinching the hose J. y v

Wfhat I claim, and desire to secure, isn

1. A settling-tank, a vertical feeder thereon vcomprising a telescopic tube7 a funnel in l as described.

said tube and a float in said tube beneath said funnel as herein set forth.

2. A settling-tank, a tubular feeder thereon attached to a launder, a Yfunnel in said feeder and a disk float in said feeder beneath said funnel for the purpose specified.

3. A settling-tank, a vertically-adjustablc feeder thereon, attached to a launder, a fun nel in said feeder and a float in said feeder beneath said funnel for the purpose stated.

4. In a settling device, a funnel-forni tank,

' a ring placed interiorly of said tank and forining with the wall of the tank a. channel therein, said channel provided with outlets and a bottoni incl'ining toward said outlets, a band of ilexible material supported upon said ring' and nieans for tightening or loosening said band whereby said band may be variably adjusted at different portions of the circumference of the ring to secure a perfectly level overflow,

In testimony whereof I have signed my name to this specification -in the presence of two subscribin Witnesses.

JO IN MICHAEL CALLOW.

Witnesses: l

WILLIAM R. HALL,- y JOHN C. NUGENT. 

